Product code: Knex Education Simple Machines Gears & Levers & Pulleys Sets STEM shops
2 Sets of educational STEM building K'NEX sets. Gears, Pulleys & Levers. I went through most of the shops pieces. All of he uncommon and they are complete with instructions. The levers and gears comes with a CD. Great for boys and girls. See pictures for condition.
2 Sets of educational STEM building K'NEX sets. Gears, Pulleys & Levers. I went through most of the shops pieces. All of he uncommon and they are complete with instructions. The levers and gears comes with a CD. Great for boys and girls. See pictures for condition.